Are there drivers for The Imaging Source USB-3 Cameras?

The Scorpion Firegrab.dll camera driver supports The Imaging Source USB cameras.

The Scorpion Vision  Installer provides the latest drivers for Imaging Source USB drivers

The Scorpion Vision Installer provides the latest drivers for Imaging Source USB drivers

The Scorpion Vision Installer provides drivers for The Imaging Source cameras

Read more on The Imaging Source

More on Scorpion Camera drivers and camera support  in the Scorpion Online Help

Can I connect an AVT GigE camera to Scorpion Vision?

Yes – please follow this procedure:

  1. Read the description of the camera driver
  2. Change Scorpion camera driver to PvGrab.dll
  3. Download the AVT PvApi driver from AVT
  4. Configure your network card correctly

Good luck !


Do we support IP-Cameras and GigE Cameras?

Yes we do 🙂

The latest additions are implemented through the DirectShow driver firegrab.dll

The DirectShow driver supports basically all firewire cameras and usb cameras with a vdm-driver. Many ip-cameras and gige cameras can also be supported using the same Scorpion Camera Driver – firegrab.dll

The latest firegrab.dll versions and is updated to support:

Release notes and actual FireGrab.dll Scorpion Camera Driver., min Scorpion Vision Software version: 7.x.x.x – DirectX 7.0

  • improved driver initialization
    • Tested with Imaging Source WDM-driver
    • Tested with ActiveGige driver with PixelLink GigE
    • some GigE cameras caused application lock, min Scorpion Vision Software version: 7.x.x.x – DirectX 7.0

  • added configurable timeout on camera opening (configurable in inifile)
    • suited for IP camera drivers

Why and when continous triggering?

The continuous triggering in Scorpion was designed to make it possible to captures 10 – 200 images/second. The initial and simple image aquisition model defined by this pattern:

  1. Issue the Grab command
  2. Wait for all ImageComplete events
  3. Issue the Inspect to process the aquired images
  4. Use the AfterInspection event to do IO
  5. Goto 1 or Stop the inspection cycle

Read the details explanation about the event-driven model in Scorpion –

The simple model has a drawback when the camera is free-running or the system is hardware triggered if you want to run fast. The Grab command takes time and can be eliminated. This changes the basic models from:

  1. Issue the Grab command
  2. Wait for all ImageComplete events
  3. Goto 1

to the continous model

  1. Wait for all ImageComplete events
  2. Goto 1

The difference is the Grab command is implicit and not explicit in the continous model. The continous model is supported by most Scorpion Camera Drivers.

The implicit Grab command saves milliseconds which is important when running fast 20-100 images / second with a cycle time of 10 – 50 ms. It is more important the faster it goes.

The drawback with the continuous model is that Scorpion Vision might the pushed to hard – too many images might flow into the system and what we call “cpu-starvation” might occur. This may happen if images are pushed to hard into Scorpion or maybe the is noise on the hardware trigger input.

Important Rule of thumb:  The basic image capture model is the best if you do not need the speed of the continuous model.

Delay Scorpion Startup

A new feature in Scorpion is the possibility to delay the startup of Scorpion from the command line.

Read more: GettingStarted/ShortcutStartup.htm

This will in some cases remove the need of Scorpion Watchdog or Resuscitator. A use case is to delay the Scorpion loading so that the GigE network is working and available. Can be critical when working with GigE cameras.

How to select lens for an area scan camera?

Use the excellent lens calculator at Scorpion Support Web.

The calculator support lens design from 1/4″ to 1″.

Scorpion Lens Calculator

Scorpion Lens Calculator

Why does Scorpion hang on Image Aquisition Loading?

There reason for this is normally an issue with Direct Show driver installation. This is reported from time to time.

The solution is to change the general.ini from



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